根号里的数为什么不能是负数

页面:/news/view-2601024/ | 耗时:0.1789 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=2601024 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2601024 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2601024 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1132227,1090541,1099121,1109669,1131755,1064653,1120418,1067895,1057383,1109118,1126784,1117207,1024969,1047093,1117662,1101945,1126912,1043828,1104745,1097635,1117580,1133443,1835959,990402,1097273,1112160,1045841,1045911,1133273,1130152) ORDER BY field (ArticleID,1132227,1090541,1099121,1109669,1131755,1064653,1120418,1067895,1057383,1109118,1126784,1117207,1024969,1047093,1117662,1101945,1126912,1043828,1104745,1097635,1117580,1133443,1835959,990402,1097273,1112160,1045841,1045911,1133273,1130152)